3D platforms made from biopolymers for the sustained release of microorganisms in biological control applications

Abstract: The aim of this abstract focuses on developing extrusion-based bioprinted 3D
platforms using biopolymer-based bioinks, such as gellan gum (GG), enhanced with
reinforcement particles like clays to form composite hydrogels (CH). These platforms aim to
encapsulate biological control agents (ACBs), such as Trichoderma spp. fungi, for sustained
release in soil as biodefensives. Physicochemical characterizations and viability tests were
carried out. The goal is to create formulations that ensure microorganism viability, reduce
agrochemical use, and offer controlled release of encapsulated agents.